Bulg. J. Phys. vol.25 no.3-4 (1998), pp. 124-133


Nonlinear Dynamics in the Superconducting Accelerator Nuclotron

D. Dinev
Institute for Nuclear Research and Nuclear Energy, 72 Tzarigradsko Chaussee Blvd, 1784 Sofia, Bulgaria
Abstract. The paper represents an extensive study of the nonlinear beam dynamics in the superconducting heavy ion synchrotron NUCLOTRON operating in JINR – Dubna. Two methods: distortion functions and particle tracking have been used for this investigation. Beam distortion, SMEAR, dynamic aperture and nonlinear acceptance have been calculated for different particle energies and betatron tunes. Nonlinear resonances have been examined both analytically and by tracking with special attention to 3Qx = 20 slow extraction resonance.

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